Posted 12 July 2009 - 09:48 PM
What model Presario do you have?
These green lines can be attributed to a few things. It could be the ribbon cable leading to the LCD screen itself, it could be the LCD screen, it could be a video card starting to go bad or it could be as simple as a video card driver issue.
A similar problem is exhibited on a desktop computer when the video cable goes bad but this normally affects the entire screen on the monitor.
As an LCD is thousands of single "Pixels" that are normally controlled from an edge card on the back of the LCD screen this problem can be exhibited when one or two lines come loose on this "edge card".
Hope this sheds some "light",
"Admire those who attempt great things, even though they fail."